本誓(běn shì) “a former vow”
not found at HD. 4 717b(梁代); not found at DK. 6.31;
128b18.妙音菩萨……示本行、所学。闻之，亘然各成所志，不远本誓(p)
K. 435.1.-; not found at L. 56b6;